22342121 has 4 divisors (see below), whose sum is σ = 22357632. Its totient is φ = 22326612.

The previous prime is 22342087. The next prime is 22342123. The reversal of 22342121 is 12124322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22342121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22342121.

It is not an unprimeable number, because it can be changed into a prime (22342123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345 + ... + 8558.

It is an arithmetic number, because the mean of its divisors is an integer number (5589408).

Almost surely, 2^22342121 is an apocalyptic number.

It is an amenable number.

22342121 is a deficient number, since it is larger than the sum of its proper divisors (15511).

22342121 is a wasteful number, since it uses less digits than its factorization.

22342121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15510.

The product of its digits is 192, while the sum is 17.

The square root of 22342121 is about 4726.7452861351. The cubic root of 22342121 is about 281.6489478406.

Adding to 22342121 its reverse (12124322), we get a palindrome (34466443).

The spelling of 22342121 in words is "twenty-two million, three hundred forty-two thousand, one hundred twenty-one".